Q15MCQ1 mark, −0.25Which of the following tuple relational calculus expression(s) is/are equivalent to ∀t∈r(P(t))\forall t \in r \left(P\left(t\right)\right)∀t∈r(P(t))?(A)¬∃t∈r(P(t))\neg \exists t \in r \left(P\left(t\right)\right)¬∃t∈r(P(t))(B)∃t∉r(P(t))\exists t \notin r \left(P\left(t\right)\right)∃t∈/r(P(t))(C)¬∃t∈r(¬P(t))\neg \exists t \in r \left(\neg P\left(t\right)\right)¬∃t∈r(¬P(t))(D)∃t∉r(¬P(t))\exists t \notin r \left(\neg P\left(t\right)\right)∃t∈/r(¬P(t)) I only II only III only III and IV onlySign in to save attempts.Show answer← PreviousNext →SolutionsDiscussionLoading…Sign in with Google